Summary & Overview
CPT 64657: Baroreflex Activation Therapy System Explantation, Lead and Generator Removal
CPT code 64657 denotes surgical removal of an entire baroreflex activation therapy (BAT) system, encompassing both the lead(s) and the pulse generator. This procedure is relevant nationally as the use of implantable neuromodulation devices grows for treatment-resistant cardiovascular and autonomic conditions; accurate coding supports appropriate claims processing, device-tracking, and quality measurement. The code captures a discrete explantation service distinct from partial removals or generator-only procedures.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of coding intent, clinical context, and common billing considerations for device explantation. The publication outlines expected service settings (operating room, ambulatory surgery center, or inpatient surgical suite) and clarifies that this code represents complete system removal.
The piece provides benchmarks and policy-relevant content such as typical utilization patterns, documentation elements that support medical necessity, and alignment with surgical service lines. It also highlights where “Data not available in the input” applies for fields not supplied. This national-level summary aims to inform coding professionals, revenue cycle staff, and clinical leaders about the purpose of CPT code 64657 and the practical implications for billing and administrative workflows.
Billing Code Overview
CPT code 64657 describes the complete removal of a baroreflex activation therapy (BAT) system, including explantation of the lead(s) and the pulse generator. This procedure involves surgical explantation of implanted neuromodulation hardware previously placed for baroreflex activation therapy.
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Service type: Surgical explantation of implanted neuromodulation device
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Typical site of service: Inpatient or outpatient surgical setting (operating room or ambulatory surgery center)
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Additional notes: Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with a previously implanted baroreflex activation therapy (BAT) system presents for complete system removal due to device infection around the pulse generator pocket and lead tract with erythema, purulent drainage, and positive wound cultures. The patient is evaluated preoperatively in the outpatient clinic, including device interrogation, review of anticoagulation, and infection workup. The procedure is scheduled in an ambulatory surgical center or hospital operating room under general anesthesia or monitored anesthesia care. Intraoperatively the surgeon performs explantation of the BAT pulse generator and extraction of the lead from the carotid region with careful hemostasis and irrigation of the pocket. Postoperative care includes wound management, short inpatient observation or same-day discharge depending on comorbidities, and coordination with infectious disease for antibiotic therapy and the cardiology or neuromodulation team regarding future device reimplantation planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
24 | Unrelated Evaluation and Management (E/M) service by the same physician during a postoperative period | Use when an unrelated E/M visit occurs during the global period after device removal. |
25 |